Astrophysics (index)about

Sun

(star at center of solar system)

The Sun is the star around which the solar system revolves.

Compared to other stars:

The study of stars reveals information about the Sun's past and future, and the study of the Sun reveals characteristics that other stars are presumed to have. Aside from evidence for basic stellar structure the Sun shows granulation, constantly changing light and dark spots (called granules) on the order of 500km in diameter, and supergranulation, larger (5000-10000km) slower changing regions, the latter assumed to reflect the regions of convection.

Early Sun:

Future Sun:

Some terms:


(star,solar system)
http://en.wikipedia.org/wiki/Sun
RedshiftParsecs
/Distance
Lightyears
/Lookback Years
  
~01AU~0lySun

Referenced by:
absolute magnitude (M)
abundances
Advanced Composition Explorer (ACE)
Achernar
A-type star (A)
AD Leonis (AD Leo)
asymptotic giant branch (AGB)
airmass
Algol (Beta Per)
Alpha Centauri
antenna temperature
apparent magnitude (m)
apsis
Arcturus
ARIEL
asteroid
asteroid belt
asteroseismology
astrometry
astronomical quantities
atmospheric tide
astronomical unit (AU)
AU Microscopii (AU Mic)
Association of Universities for Research in Astronomy (AURA)
aurora
epoch B1950.0
Barnard's Star
B-type star (B)
Bcool
BepiColombo
beta (β)
Beta Centauri
Betelgeuse
binding energy
black body (BB)
bow shock
CAESAR
calcium (Ca)
Canopus
carbon star
Carrington event
Cassini
carbonaceous chondrite (C chondrite)
celestial equator
celestial sphere
chondrite
chromosphere
circumstellar disk
coronal mass ejection (CME)
comet
compact object
corona
coronagraph
Coronal Solar Magnetism Observatory (COSMO)
corotation resonance (CR)
current sheet
continuous viewing zone (CVZ)
Dominion Radio Astrophysical Observatory (DRAO)
drogue chute
dwarf planet
dynamo
Earth
earthshine
ecliptic
ecliptic coordinate system
ephemeris
epicycle
epoch
Epsilon Eridani
Epsilon Indi (ε Indi)
equinox
escape velocity (Ve)
Euclid
extreme ultraviolet (EUV)
extra-solar planet
facula
F-type star (F)
FGK star
field star
FINESSE
fixed star
foe
47 Tucanae (47 Tuc)
frame of reference
Gaia
galactic bulge
galactic coordinate system (GCS)
galactic tide
gauss (G)
G band
G-type star (G)
geomagnetic storm
giant planet
giant star
globular cluster (GC)
Gould's Belt
gravitational collapse
gravity
gravity wave
greenhouse effect
Catalog of Circumpolar Stars (Groombridge)
gyrochronology
H-alpha (Ha)
habitability
HD 133131
heliocentric system
heliosphere
helium rain
Hill radius
Hipparchus
hyperluminous infrared galaxy (HLIRG)
HR 8799
H-R diagram (HRD)
hypervelocity star (HVS)
hypergiant
International Astronomical Union (IAU)
International Celestial Reference System (ICRS)
insolation
interferometer
ionosphere
iron (Fe)
interstellar magnetic field (ISMF)
J1407
J2
Japan Aerospace Exploration Agency (JAXA)
Julian date (JD)
jansky (Jy)
K2
Kapteyn's Star
K-type star (K)
Kepler Telescope
Kepler's laws
Kelvin-Helmholtz mechanism
Lacaille 9352
Lagrangian point
Lalande 21185
late heavy bombardment (LHB)
LHS 1140
light cone
limb darkening
luminous infrared galaxy (LIRG)
lithium (Li)
long-period comet
Lorentz force
low mass star
local standard of rest (LSR)
luminosity function (LF)
lunar water
Luyten 726-8
magnetic arcade
magnetic field
magnetic induction
magnetometer
magnetosphere
magnitude
main sequence star
Mars
Mars 2020
mass extinction
mass loss
mass-luminosity relation
mass-to-light ratio (M/L)
M-type star (M)
Mercury
metallicity (Z)
Milky Way
minor planet
MMRTG
molecular cloud
moment of inertia factor
moon
solar mass (MSun)
Mikheyev-Smirnov-Wolfenstein effect (MSW effect)
nebular hypothesis
near-Earth object (NEO)
Neptune
O5 spectral class (O5)
obliquity
occulting bar
O-type star (O)
Oort Cloud
Oort constants
opposition
orbital element
orbital inclination
orbital period
orbital speed
Orion
orrery
OSO 7
paleomagnetism
parallax
parsec (pc)
Planck
planet
planetary science
planetesimal
planetoid
planet type
plasma
PLATO
potential energy (PE)
Poynting-Robertson effect
precession
primary
Procyon
proper motion
Hulse-Taylor Binary (PSR B1913+16)
pulsar timing array (PTA)
quantum mixing
quantum tunneling
quasar (QSO)
radio star
random walk
Rayleigh scattering
magnetic reconnection
RECONS
red giant
Rigel
Rosetta
Ross 154
Ross 248
rotation period
radio source (RS)
Scholz's Star
Schwarzschild radius
Solar Dynamics Observatory (SDO)
seismic waves
solar energetic particle (SEP)
775 AD event
sidereal
signatures of formation
chromospheric activity index
Sirius
67P/Churyumov-Gerasimenko (67P)
Solar Maximum Mission (SMM)
supernova (SN)
solar neutrino unit (SNU)
sodium (Na)
Solar and Heliospheric Observatory (SOHO)
solar apex
solar circle
solar constant
solar eruption
solar flare
solar nebula
solar storm
solar system
solar time
solar wind
solstice
spicule
spiral arm
SSSB
standard gravitational parameter (μ)
starburst galaxy
star count
Stardust
star system
stellar flare
stellar population
stellar radius determination
stellar rotation
stellar structure
STEREO
subsatellite
sunspot
supergiant
surface abundance
surface brightness
synodic period
THEMIS
tidal locking
time standard
Titan
TRACE
transit
transiting planet
TRAPPIST-1
T Tauri
TW Hydrae (TW Hya)
ultraluminous infrared galaxy (ULIRG)
Uranus
USNO
Van Allen belts
variable star
Vega
Venus
visible light
Voyager
vegetation red edge (VRE)
watt (W)
James Webb Space Telescope (JWST)
white dwarf
Wilkinson Microwave Anisotropy Probe (WMAP)
Wolf 359
Wolf-Rayet star
Yohkoh
Yarkovsky-O'Keefe-Radzievskii-Paddack effect (YORP)
zenith
zodiacal light
zonal flow

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